Time of discovery of asteroids which came closer to Earth than the moon in 2011
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- After closest approach: 19 (61.3%)
- < 24 hours before: 1 (3.2%)
- up to 7 days before: 9 (29.0%)
- > one week before: 0 (0.0%)
- > 7 weeks before: 0 (0.0%)
- > one year before: 2 (6.5%)
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Below is the list of asteroid close approaches to Earth in 2011.